Re: Intel SST and HP ElitePad 1000 G2

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On 11/23/15 9:13 AM, Jorge Fernandez Monteagudo wrote:
Hi,

I've been able to get the audio working in the HP ElitePad 1000G2 tablet.
Attached the patch I've used in a 4.2.5 to get it working.

Thanks for sharing and good to hear that you have audio working. I have no idea why BIOS folks keep inventing new (and illegal) ACPI _HID values...

We may need to use the same tricks as in sst-acpi to find out which string to use for .codec_name based on which _HID is handled by the ACPI subsystem instead of a hard-coded value.

Note that we are trying to move away from this older driver to a newer one based on DPCM that would also support BYT-CR devices and MinnowMax Board. It's not ready yet for upstream but if you want to add those changes to the newer version and test it'd be great. See https://github.com/plbossart/sound.git t100-v4.3-24bit and matching UCM files at https://github.com/plbossart/UCM


Basically in this tablet the rt5640 realtek audio codec is identified with
INTCCFFD. I don't know how to share 'byt-rt5640.c' with two identifiers
because I had to change:

@@ -186,7 +194,7 @@
  		.stream_name = "Audio",
  		.cpu_dai_name = "baytrail-pcm-audio",
  		.codec_dai_name = "rt5640-aif1",
-		.codec_name = "i2c-10EC5640:00",
+		.codec_name = "i2c-INTCCFFD:00",
  		.platform_name = "baytrail-pcm-audio",
  		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
  			   SND_SOC_DAIFMT_CBS_CFS,

but the correct will be to two both of them.

Regards

________________________________________
From: alsa-devel-bounces@xxxxxxxxxxxxxxxx [alsa-devel-bounces@xxxxxxxxxxxxxxxx] On Behalf Of Jorge Fernandez Monteagudo [jorgefm@xxxxxxxxx]
Sent: Friday, November 20, 2015 4:27 PM
To: alsa-devel@xxxxxxxxxxxxxxxx
Subject:  Intel SST and HP ElitePad 1000 G2

Hi,

This is my first email in this list, and my last chance to make my tablet
audio system work

I'm trying to get my tablet audio system working but I'm run out of ideas.
The HP ElitePad 1000 G2 it's an Atom Z3795 1.60GHz Bay Trail-T tablet.

I'm using a kernel 4.2.5 with all the SST configs enabled:

CONFIG_SND_SST_MFLD_PLATFORM=m
CONFIG_SND_SST_IPC=m
CONFIG_SND_SST_IPC_ACPI=m
CONFIG_SND_SOC_INTEL_SST=m
CONFIG_SND_SOC_INTEL_SST_ACPI=m
CONFIG_SND_SOC_INTEL_HASWELL=m
CONFIG_SND_SOC_INTEL_BAYTRAIL=m
CONFIG_SND_SOC_INTEL_HASWELL_MACH=m
CONFIG_SND_SOC_INTEL_BYT_RT5640_MACH=m
CONFIG_SND_SOC_INTEL_BYT_MAX98090_MACH=m
CONFIG_SND_SOC_INTEL_BROADWELL_MACH=m
CONFIG_SND_SOC_INTEL_BYTCR_RT5640_MACH=m
CONFIG_SND_SOC_INTEL_CHT_BSW_RT5672_MACH=m
CONFIG_SND_SOC_INTEL_CHT_BSW_RT5645_MACH=m
CONFIG_SND_SOC_INTEL_CHT_BSW_MAX98090_TI_MACH=m
# CONFIG_SND_SOC_QCOM is not set
# CONFIG_SND_SOC_XTFPGA_I2S is not set
CONFIG_SND_SOC_I2C_AND_SPI=m

I've follow the same steps as the installation for Asus T100TA
https://wiki.debian.org/InstallingDebianOn/Asus/T100TA

and finally I only get the dmesg traces:

sst-acpi 80860F28:00: No matching ASoC machine driver found
intel-sst-acpi 80860F28:00: No matching machine driver found

 From the 'dsdt.dsl' I can see:

         Device (I2C2)
         {
             Name (_ADR, Zero)  // _ADR: Address
             Name (_HID, "80860F41" /* Intel Baytrail I2C Host Controller */)  // _HID: Hardware ID
             Name (_CID, "80860F41" /* Intel Baytrail I2C Host Controller */)  // _CID: Compatible ID
             Name (_DEP, Package (0x01)  // _DEP: Dependencies
             {
                 PEPD
             })
             Name (_DDN, "Intel(R) I2C Controller #2 - 80860F42")  // _DDN: DOS Device Name
             Name (_UID, 0x02)  // _UID: Unique ID
             Name (RBUF, ResourceTemplate ()
             {
                 Memory32Fixed (ReadWrite,
                     0x00000000,         // Address Base
                     0x00001000,         // Address Length
                     _Y12)
                 Interrupt (ResourceConsumer, Level, ActiveLow, Exclusive, ,, )
                 {
                     0x00000021,
                 }
                 FixedDMA (0x0012, 0x0002, Width32bit, )
                 FixedDMA (0x0013, 0x0003, Width32bit, )
             })
             Method (_HRV, 0, NotSerialized)  // _HRV: Hardware Revision
             {
                 Return (SOCS) /* \SOCS */
             }

             Method (_CRS, 0, NotSerialized)  // _CRS: Current Resource Settings
             {
                 CreateDWordField (RBUF, \_SB.I2C2._Y12._BAS, B0BA)  // _BAS: Base Address
                 CreateDWordField (RBUF, \_SB.I2C2._Y12._LEN, B0LN)  // _LEN: Length
                 Store (I20A, B0BA) /* \_SB_.I2C2._CRS.B0BA */
                 Store (I20L, B0LN) /* \_SB_.I2C2._CRS.B0LN */
                 Return (RBUF) /* \_SB_.I2C2.RBUF */
             }

             Method (_STA, 0, NotSerialized)  // _STA: Status
             {
                 If (LOr (LEqual (I20A, Zero), LEqual (L22D, One)))
                 {
                     Return (Zero)
                 }

                 Return (0x0F)
             }

             Method (_PS3, 0, NotSerialized)  // _PS3: Power State 3
             {
                 Or (PSAT, 0x03, PSAT) /* \_SB_.I2C2.PSAT */
                 Or (PSAT, Zero, PSAT) /* \_SB_.I2C2.PSAT */
             }

             Method (_PS0, 0, NotSerialized)  // _PS0: Power State 0
             {
                 And (PSAT, 0xFFFFFFFC, PSAT) /* \_SB_.I2C2.PSAT */
                 Or (PSAT, Zero, PSAT) /* \_SB_.I2C2.PSAT */
             }

             OperationRegion (KEYS, SystemMemory, I21A, 0x0100)
             Field (KEYS, DWordAcc, NoLock, WriteAsZeros)
             {
                 Offset (0x84),
                 PSAT,   32
             }

             Device (RTEK)
             {
                 Name (_ADR, Zero)  // _ADR: Address
                 Name (_HID, "INTCCFFD")  // _HID: Hardware ID
                 Name (_CID, "INTCCFFD")  // _CID: Compatible ID
                 Name (_DDN, "RTEK Codec Controller ")  // _DDN: DOS Device Name
                 Name (_UID, 0x02)  // _UID: Unique ID
                 Method (_CRS, 0, NotSerialized)  // _CRS: Current Resource Settings
                 {
                     Name (SBUF, ResourceTemplate ()
                     {
                         I2cSerialBus (0x001C, ControllerInitiated, 0x00061A80,
                             AddressingMode7Bit, "\\_SB.I2C2",
                             0x00, ResourceConsumer, ,
                             )
                         GpioInt (Edge, ActiveBoth, SharedAndWake, PullNone, 0x0000,
                             "\\_SB.GPO2", 0x00, ResourceConsumer, ,
                             )
                             {   // Pin list
                                 0x000E
                             }
                         GpioInt (Edge, ActiveBoth, SharedAndWake, PullNone, 0x0000,
                             "\\_SB.GPO0", 0x00, ResourceConsumer, ,
                             )
                             {   // Pin list
                                 0x0003
                             }
                         GpioInt (Edge, ActiveBoth, SharedAndWake, PullNone, 0x0000,
                             "\\_SB.GPO0", 0x00, ResourceConsumer, ,
                             )
                             {   // Pin list
                                 0x0000
                             }
                         GpioIo (Shared, PullDefault, 0x0000, 0x0000, IoRestrictionInputOnly,
                             "\\_SB.GPO2", 0x00, ResourceConsumer, ,
                             )
                             {   // Pin list
                                 0x000E
                             }
                         GpioIo (Shared, PullDefault, 0x0000, 0x0000, IoRestrictionInputOnly,
                             "\\_SB.GPO0", 0x00, ResourceConsumer, ,
                             )
                             {   // Pin list
                                 0x0003,
                                 0x0000
                             }
                     })
                     Return (SBUF) /* \_SB_.I2C2.RTEK._CRS.SBUF */
                 }

What am I missing? I suppose I need some changes in the kernel sources but I don't know
where to start. Any help is welcome

Regards,
Jorge

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